Cu(II) Pyropheophytin a

Cu(II) Pyropheophytin a CAS: 105791-89-7 MDL:

Field of Interest: Olive Oil Additives

Background: Cu(II) Pyropheophytin a is a common additive in olive oil ^1-5 and is determined by HPLC and confirmed by LC/MS/MS

Molecular weight: 874.694 g/mol

Molecular Formula:

CAS Number: 105791-89-7

Storage: Store at -20 ^oC, protect from light.

Synonyms: Cu(II) pyropheophytin a, InChI=1S/C44H28N4O12S4.Cu/c49-61(50,51)29-9-1-25(2-10-29)41-33-17-19-35(45-33)42(26-3-11-30(12-4-26)62(52,53)54)37-21-23-39(47-37)44(28-7-15-32(16-8-28)64(58,59)60)40-24-22-38(48-40)43(36-20-18-34(41)46-36)27-5-13-31(14-6-27)63(55,56)57;/h1-24H,(H,49,50,51)(H,52,53,54)(H,55,56,57)(H,58,59,60);/q-2;+2/b41-33-,41-34-,42-35-,42-37-,43-36-,43-38+,44-39-,44-40+; InChIKey=FBYAOHXWXCVHGH-PFRGLPNSSA-N

References:

1.) Roca, M., Gallardo-Guerrero, L., Minguez-Mosquera, M.I., Rojas, B.G.; Control of Olive Oil Adulteration with Copper-Chlorophyll Derivatives. Agric. Food Chem. 2010, 58, 51-56. https://doi.org/10.1021/jf902084d

2.) Fang, M., Tsai, C., Wu, G., Tseng, S., Cheng, H., Kou, C., Hsu, C., Kao, Y., Shih, D.Y., Chiang, Y.; Identification and quantification of Cu-chlorophyll adulteration of edible oils. Food Additives & Contaminants: Part B 2015,8, 157-162. https://doi.org/10.1080/19393210.2015.1025861

3.) Gallardo-Guerrero, L., Gandul-Rojas, B., Minguez-Mosquera, I.; Chlorophyll Pigment Composition in Table Olives(cv. Gordal) with Green Staining Alteration. J Food Prot. 1999, 62, 1167-1171. https://doi.org/10.4315/0362-028x-62.10.1167

4.) Viera, I., Perez-Galvez, A., Roca, M., Green Natural Colorants. Molecules 2019, 24, 154. https://doi.org/10.3390/molecules24010154

5.) Aparicio-Ruiz, et al. Identification and Quantification of Metallo–Chlorophyll Complexes in Bright Green Table Olives by High-Performance Liquid Chromatrography–Mass Spectrometry Quadrupole/Time-of-Flight. J. Agric. Food Chem. 2011, 59, 20, 11100–11108. https://doi.org/10.1021/jf201643s

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